Deuteronomy 13:4

“Yahweh your God you shall fear; and Him you shall serve; and by His name you shall swear.

“Yahweh your God you shall fear; Him you shall serve, and to Him you shall cling, and by His name you shall swear.

Then Samuel spoke to all the house of Israel, saying, “If you are to return to Yahweh with all your heart, then remove the foreign gods and the Ashtaroth from among you and set your hearts toward Yahweh and serve Him alone; and He will deliver you from the hand of the Philistines.”

Then the king stood by the pillar and cut a covenant before Yahweh, to walk after Yahweh, and to keep His commandments and His testimonies and His statutes with all his heart and all his soul, to establish the words of this covenant that were written in this book. And all the people entered into the covenant.

“Yahweh has given you to be a priest instead of Jehoiada the priest, to be the overseer in the house of Yahweh over every madman who prophesies, to put him in the stocks and in the iron collar,

But false prophets also arose among the people, just as there will also be false teachers among you, who will secretly introduce destructive heresies, even denying the Master who bought them, bringing swift destruction upon themselves.